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CVE-2023-28811· NVD / CVE Program· CNA hikvision

There is a buffer overflow in the password recovery feature of Hikvision NVR/DVR models.

There is a buffer overflow in the password recovery feature of Hikvision NVR/DVR models. If exploited, an attacker on the same local area network (LAN) could cause the device to malfunction by sending specially crafted packets to an unpatched device.

MediumCVSS 6.5 · v3.1—No exploit No fix recorded
Published
Nov 23, 2023
Updated
Jun 17, 2026
EPSS
0.4% · 31th percentile
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Action score

26

Monitor

Low priority for now.

CVSS
26 / 40 · 6.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.4%

CNA vs NVD score

NVD
6.5
CNA · hikvision
7.4
0.9 point gap

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Affected systems

VendorProduct
hikvisionnvr-216mh-c\(d\) firmware
hikvisionnvr-216mh-c\(d\)
hikvisionnvr-216mh-c\/16p\(d\) firmware
hikvisionnvr-216mh-c\/16p\(d\)
hikvisionnvr-208mh-c\/8p\(d\) firmware
hikvisionnvr-208mh-c\/8p\(d\)
hikvisionnvr-104mh-c\/4p\(d\) firmware
hikvisionnvr-104mh-c\/4p\(d\)
hikvisionnvr-104mh-c\(d\) firmware
hikvisionnvr-104mh-c\(d\)
hikvisionnvr-108mh-c\(d\) firmware
hikvisionnvr-108mh-c\(d\)

and 67 more

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Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • hikvision ds-7104ni-q1(c) firmwarebefore 4.1.60
  • hikvision ds-7104ni-q1(d) firmwarebefore 4.1.60
  • hikvision ds-7108ni-q1(c) firmwarebefore 4.1.60
  • hikvision ds-7108ni-q1(d) firmwarebefore 4.1.60
  • hikvision ds-7604ni-k1(c) firmwarebefore 4.1.60
  • hikvision ds-7604ni-k1/4p/4g(c) firmwarebefore 4.1.60
  • hikvision ds-7604ni-q1(c) firmwarebefore 4.1.60
  • hikvision ds-7604ni-q1/4p(c) firmwarebefore 4.1.60
  • hikvision ds-7608ni-k1/8p(c) firmwarebefore 4.1.60
  • hikvision ds-7608ni-k1/8p/4g(c) firmwarebefore 4.1.60
  • hikvision ds-7608ni-q1(c) firmwarebefore 4.1.60
  • hikvision ds-7608ni-q1/8p(c) firmwarebefore 4.1.60
  • hikvision ds-7608ni-q2(c) firmwarebefore 4.1.60
  • hikvision ds-7608ni-q2/8p(c) firmwarebefore 4.1.60
  • hikvision ds-7616ni-k1(c) firmwarebefore 4.1.60
  • hikvision ds-7616ni-q1(c) firmwarebefore 4.1.60
  • hikvision ds-7616ni-q2(c) firmwarebefore 4.1.60
  • hikvision ds-7616ni-q2/16p(c) firmwarebefore 4.1.60
  • hikvision dvr firmwarebefore 4.1.60
  • hikvision nvr-104mh-c(c) firmwarebefore 4.1.60

Versions reported by the vendor

Affected version ranges reported by the assigning authority (hikvision). Independent of NVD's CPE analysis and usually ahead of it.

  • Hikvision DS-71XXHGH-K(S)

    • Build date before 230821(Version before V4.1.60 are not affected)affected

  • Hikvision DS-71XXHGH-M(C)

    • Build date before 230821(Version before V4.1.60 are not affected)affected

  • Hikvision DS-71xxNI-Q1(C)

    • Build date before 230821(Version before V4.1.60 are not affected)affected

  • Hikvision DS-71xxNI-Q1(D)

    • Build date before 230821(Version before V4.1.60 are not affected)affected

  • Hikvision DS-72XXHGH-K(S)

    • Build date before 230821(Version before V4.1.60 are not affected)affected

  • Hikvision DS-72XXHGH-M(C)

    • Build date before 230821(Version before V4.1.60 are not affected)affected

  • Hikvision DS-76xxNI-K1(C)

    • Build date before 230821(Version before V4.1.60 are not affected)affected

  • Hikvision DS-76xxNI-Q1(C)

    • Build date before 230821(Version before V4.1.60 are not affected)affected

  • Hikvision DS-76xxNI-Q2(C)

    • Build date before 230821(Version before V4.1.60 are not affected)affected

  • Hikvision DS-77xxNI-I4(B)

    • Build date before 230821(Version before V4.1.60 are not affected)affected

  • Hikvision DS-EXXHGH

    • Build date before 230821(Version before V4.1.60 are not affected)affected

  • Hikvision DVR-EXXHGH

    • Build date before 230821(Version before V4.1.60 are not affected)affected

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

No fix version is recorded for this entry. Check the references for vendor advisories.

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • No account or password is required.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS vector

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Root cause

When data is copied, the source length is not compared with the size of the destination buffer. Excess data overwrites adjacent memory.

The bug in code

The whole CWE-120 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

c
char buf[256];memcpy(buf, pkt->data, pkt->len);

Fixed

c
char buf[256];if (pkt->len > sizeof(buf)) {  return -EINVAL;}memcpy(buf, pkt->data, pkt->len);

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

Noroxi analysis

No Noroxi analysis for this record yet

We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.

We use this product, ask for help

Change log

No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.

References

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records